Bricklayers work from scaffolding at the Denver Ordnance plant (Remington Ordnance Plant, later the Denver Federal Center) in Lakewood (Jefferson County), Colorado. Masons construct window casings with brick. Laborers wear work clothes and hats possibly with employee identification numbers. One man mixes mortar while another man leans on a ladder. Cinder blocks and bricks lay on the ground near the scaffolding.